How To Jailbreak iPhone 3G/3GS Firmware 3.1.2 Using blackra1n RC3?
In order to jailbreak your iPhone with 3.1.2 firmware you need blackra1n, a two-in-one jailbreaking and unlocking tool. The latest version of blackra1n, RC3 can jailbreak iPhone2G, 3G as well as 3GS running on baseband 05.11.07. Here are the steps to use blackra1n (created by geohot) to jailbreak your iPhone (2G/3G/3GS) or iPod Touch (1G/2G/3G) with firmware 3.1.2:
Requirements:
Download and install the latest version of iTunes if you don’t have it already on your PC.
Your iPhone should be updated to iPhone OS 3.1.2.
1. Download blackra1n RC3 for Windows or Mac.
2. Connect your iPhone or iPod Touch to your computer
2. Run the downloaded blackra1n application. In case you are running the application on Windows Vista or Windows 7, run the program in Windows XP compatibility mode. You can enable this mode from the ‘Properties’ tab.
3. Click on ‘make it ra1n’. This will place your device in the recovery mode. The recovery mode screen is replaced with a picture of geohot, the author of blackra1n.

4. blackra1n will show a message ‘done, wait for reboot’. Wait for your phone to automatically reboot.
5. After rebooting, your iPhone will be jailbroken. You should now find blackra1n in the list of applications running on your iPhone. The blackra1n icon appears on the Springboard.
6. Run this blackra1n app on your iPhone after making sure you have an internet connection. The app presents you with a list of packages, including Cydia, Rock and blacksn0w which is the unlock software given by geohot.
7. Select the package(s) you want to install and blackra1n will download and install them. This will complete the jailbreak process for your iPhone or iPod touch.
8. For example if you chose to install Cydia, you will find Cydia on your iPhone’s Springboard after the above process is complete.
9. Reboot your device to get a fully jailbroken iPhone running on firmware 3.1.2. You can uninstall Blackra1n any time you want to from the Springboard.
Apple now has Rhapsody as an app, which is a great start, but it is currently hampered by the inability to store locally on your iPod, and has a dismal 64kbps bit rate. If this changes, then it will somewhat negate this advantage for the Zune, but the 10 songs per month will still be a big plus in Zune Pass’ favor.
I’ll gear this review to 2 types of people: current Zune owners who are considering an upgrade, and people trying to decide between a Zune and an iPod. (There are other players worth considering out there, like the Sony Walkman X, but I hope this gives you enough info to make an informed decision of the Zune vs players other than the iPod line as well.)
The Zune concentrates on being a Portable Media Player. Not a web browser. Not a game machine. Maybe in the future it’ll do even better in those areas, but for now it’s a fantastic way to organize and listen to your music and videos, and is without peer in that regard. The iPod’s strengths are its web browsing and apps. If those sound more compelling, perhaps it is your best choice.
The Zune concentrates on being a Portable Media Player. Not a web browser. Not a game machine. Maybe in the future it’ll do even better in those areas, but for now it’s a fantastic way to organize and listen to your music and videos, and is without peer in that regard. The iPod’s strengths are its web browsing and apps. If those sound more compelling, perhaps it is your best choice.
uhm just found this video on yt and loads people claim it works , what do you think?
i have a question?? can u jailbreak the iPod touch 4.1 2g with the blackra1n.exe or any other applications??